Measurement of differential cross sections for ? µ -Ar charged-current interactions with protons and no pions in the final state with the MicroBooNE detector
Measurement of differential cross sections for ? µ -Ar charged-current interactions with protons and no pions in the final state with the MicroBooNE detector
复制标题
微分截面的测量？
DOI：
10.1103/physrevd.102.112013
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发表时间：
2020
影响因子：
5
通讯作者：
Abratenko P
中科院分区：
文献类型：
--
作者：
Abratenko P
我们提出了对MicroBooNE数据的分析，其特征是一个μ子，没有介子，并且至少有一个质子超过动量阈值（）。这是在中微子-氩相互作用中首次对这种拓扑结构进行微分截面测量。我们获得了比以前基于碳和闪烁体的实验明显更低的质子动量阈值。利用从目标上大约总共质子收集的数据，我们测量了MicroBooNE中平均能量约为800 MeV的助推器中微子束中氩气相互作用通道的μ子中微子横截面。我们给出了一个估计效率为29%、纯度为76%的数据样本的结果，作为五个重建变量的微分截面：介子动量和极性角、先导质子动量和极性角以及介子-质子开口角。我们包括涂抹矩阵，可以用来“向前折叠”理论预测与这些数据进行比较。我们将测量到的微分截面与最近的一些理论预测进行了比较，结果表明，这与第一个关于氩的数据集基本吻合。
We present an analysis of MicroBooNE data with a signature of one muon, no pions, and at least one proton above a momentum threshold of(). This is the first differential cross-section measurement of this topology in neutrino-argon interactions. We achieve a significantly lower proton momentum threshold than previous carbon and scintillator-based experiments. Using data collected from a total of approximatelyprotons on target, we measure the muon neutrino cross section for theinteraction channel in argon at MicroBooNE in the Booster Neutrino Beam which has a mean energy of around 800 MeV. We present the results from a data sample with estimated efficiency of 29% and purity of 76% as differential cross sections in five reconstructed variables: the muon momentum and polar angle, the leading proton momentum and polar angle, and the muon-proton opening angle. We include smearing matrices that can be used to “forward fold” theoretical predictions for comparison with these data. We compare the measured differential cross sections to a number of recent theory predictions demonstrating largely good agreement with this first-ever dataset on argon.